nonlinear time-varying model 中文意思是什麼
nonlinear time-varying model
解釋
非線性時變模型-
Simulation results show that both of them have satisfactory performance and strong robustness. 2. to ph processes, which are nonlinear and time varying, the neural network model is structured and the learning algorithm is presented, based on which the model - free controller is designed, while the controller gain is scheduled by a fuzzy method
針對具有嚴重非線性和不確定性的ph中和過程，給出一種神經網路模型，提出了一種神經非模型控制方法，該方法利用模糊演算法在線調整神經網路控制器的增益，模擬實驗表明這種基於神經網路的非模型控制方法能有效控制ph過程，具有優良的控製品質和強魯棒性。 -
2. the cement rotary kiln is a complex process, which has nonlinear and time - varying characteristic and exist strong and frequent disturbance, so global model is hard to establish. based on analysis of the characteristics of the decomposing furnace in hangzhou cement rotary kiln plant, a new fuzzy predictive control method with multi - model structure is proposed
根據水泥生產線系統復雜、干擾頻繁、全局模型建立困難的實際情況，通過對回轉窯燒成工藝和分解爐過程特性的分析，提出一種基於t - s模型的多模結構的預測控制演算法，並在dcs系統中開發了實時控制的軟體。 -
The primary works and innovations of this paper include but not limited to : ( 1 ) considering the nonlinear, time - varying and uncertain characteristics of networks, a new active queue management ( aqm ) algorithm, i. e. nnpc - aqm was proposed based on predictive control theory, which requires less model accuracy. in order to realize fast control, a predictor was constructed using two - layer linear neural network to predict the future queue length, and a controller was composed using two layers of nonlinear neural network to optimize the next control volume, i. e. drop probability
本文研究的主要內容及創新點如下： （ 1 ）針對網路的非線性、時滯、不確定特點，結合預測控制理論提出一種新型主動隊列管理（ aqm ）策略nnpc - aqm ，該演算法基於單值預測控制思想，為了實現快速控制，採用兩層神經網路構造預測器，估計未來時刻隊列長度；採用兩層非線性神經網路組成控制器，實現對下一步丟棄概率的優化。 -
Besides, we show the method and result in the research of the heart rate variability. it is proved that the nonlinear analysis is much more effective in the clinical diagnoses of heart disease. by the end of this dissertation, we list some problems for our future works including chaos in discrete time ~ varying systems, srb measures of the chaotic map in the sense of marotto, complex dynamics of both h. h. model and cou - pled integrate - and - fire models, strange attractors in h6non systems with classical parameters
在本文的第五章中，我們給出了一類一維時滯泛函微分方程穩定性的判別法，而這一方程本身可以用來刻畫連續的具有動態閾值的神經元模型；此外，我們介紹了非線性指標在心律變異中的具體應用與部分的分析結果，以進一步說明非線性分析在心律變異研究中的有效性和實用性 -
Using the cogent validity of backstepping " s solving parametric - strict - feedback nonlinear systems, xinghuo yu and wu yuqiang ( 1998 ) solved the output - tracking problem of a kind of linear time varying system by combining nonlinear damping method and variable structure scheme. in this dissertation, we sufficiently consider the effect of disturbances in the input channel basing on the same model
Xinghuoyu和yuqiangwu （ 1998 ）針對一類線性時變系統的輸出跟蹤問題，基於back飛tepping設計機制，將帶有非線性dallpipg項的設計方法與變結構控制方法相結合，給出了一種新的非線性控制器設計方法 -
Liquid - solid extrusion of composite material is a new kind of metal forming process, which has been developed in recent years with a promising practical application prospect for its simple working procedure, low cost and good workpiece performance. but it is difficult to set up an accurate mathematical model because the process is a multivariable nonlinear time varying system. so this process ca n ' t be put into practical uses for the difficulties in process parameters control
復合材料管、棒材液-固擠壓成形工藝是近幾年發展起來的一種金屬成形新工藝，具有工序少、成本低、製件性能好等特點，應用前景廣闊，但該工藝是一多變量非線性時變系統，很難建立精確的數學模型，過程參數難于控制，限制了該工藝的實際應用。 -
( 2 ) wavelet networks are introduced to gpc. several nonlinear gpc algorithms based on wavelet networks are given : a nonlinear gpc base on predictive error compensation is designed, in which wavelet network is used to model the predictive error ; a new structure of multi - step predictive controller is constructed in which wavelet networks are used to identified the nonlinear directly ; a single - step predictive controller is given, in which a wavelet networks are used to estimate the parameters of the linear time - varying system. ; an a implicit gpc for nonlinear system is presented, in which wavelet networks are used to estimated the time - varying parameters of the generalized predictive controller
（ 2 ）將小波網路與非線性廣義預測控制相結合，設計了多種基於小波網路的非線性廣義預測控制：考慮到建模誤差對多步預報的影響，引入小波網路估計預報誤差，對輸出預報進行修正，提高了控制性能且不影響系統的穩定性；利用小波網路構造多步預測器，設討了非線性系統多步預測控制演算法；利用小波網路逼近非線性系統廣義預測控制器的時變參數，設計了非線性系統隱式廣義預測控制器；利用小波網路辨識時變系統參數並直接用於構造控制器，設計了非線性系統單步預測控制演算法。 -
When ships are at their actual voyages the working conditions ( such as loading, depth of drafu ship speed ) and the navigating environments ( such as the sea route, depth of water, wind, wave, current ) are variable to a large extent. the whole during is a procedure of model varying with time nonlinear and large disturbance. the introduction of the intelligent controlling method can contribute to the improvement of automation degree for ship avoiding collision and maneuvering systems
由於船舶的運動在實際的航行過程中隨船舶的工作狀態（如載荷、吃水深度、航速等）及航行環境（如航線、水深、風、浪、流等）的不同而有很大的變化，是一個模型時變、非線性、大幹擾的過程，將智能化控制技術用於其中將會有助於船舶避碰與操縱系統的自動化程度的提高。 -
Abstract : influences of the changes of the amplitude and space frequenc y of road surface roughness on adhesion ability are simulated and analyzed by me ans of the nonlinear and time - varying tyer model made by the author
文摘:採用作者建立的非線性時變輪胎模型，模擬分析了路面不平度幅值及路面空間頻率變化對地面附著性能的影響。 -
Meanwhile, it is seen that the nonlinear and time - varying tyre model is useful for the sim ulation and analysis of braking performances of vehicles on rough road surface b ecause it reflects the real influence of the road surface roughness on tyre
同時說明非線性時變輪胎模型能較真實地體現路面不平度的影響，對不平路面上車輛制動性能模擬是一個有效的輪胎力學模型。
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